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  <meta charset="UTF-8">
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  <title>f11进入函数内部调试</title>
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<body>
  <script>
    function some(ele, arr = []) {
      let flag = false
      for (let i = 0; i < arr.length; i++) {
        if (ele === arr[i]) {
          flag = true
          break
        }
      }
      return flag
    }

    let re = some('香蕉', ['苹果', '香蕉', '橘子'])
    console.log(re) 
  </script>
</body>

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